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Vulnerability of McAfee VirusScan: program execution by naPrdMgr.exe

Synthesis of the vulnerability 

An attacker can store a program on system, in order to make it run by naPrdMgr.exe.
Vulnerable products: CheckPoint SecureClient, CheckPoint SecuRemote, VPN-1, Kaspersky AV, VirusScan, Windows 2000, Windows NT.
Severity of this weakness: 1/4.
Creation date: 23/12/2005.
Références of this bulletin: BID-16040, CVE-2005-4505, VIGILANCE-VUL-5448.

Description of the vulnerability 

The naPrdMgr.exe program periodically runs, with Local System rights:
  C:\Program Files\Network Associates\VirusScan\EntVUtil.EXE

However, this path is not enclosed between quotes. When permissions permit it, an attacker can thus create a program with a short name:
  C:\Program.exe
  C:\Program Files\Network.exe

This program is then run with system rights.
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This security bulletin impacts software or systems such as CheckPoint SecureClient, CheckPoint SecuRemote, VPN-1, Kaspersky AV, VirusScan, Windows 2000, Windows NT.

Our Vigil@nce team determined that the severity of this cybersecurity announce is low.

The trust level is of type confirmed by a trusted third party, with an origin of user shell.

An attacker with a expert ability can exploit this vulnerability alert.

Solutions for this threat 

McAfee VirusScan: Patch 12.
Patch 12 is available for McAfee VirusScan Enterprise 8.0i.

Solution pour Windows 2000.
Microsoft propose un patch (il est aussi inclus dans le Service Pack 2) :
 - Windows 2000 Professional :
 - Windows 2000 Server :
 - Windows 2000 Advanced Server :
     http://www.microsoft.com/Downloads/Release.asp?ReleaseID=23359
De plus, comme annoncé dans MS2002-064, il faut changer les permissions de la racine :
 - Administrateurs : contrôle total (ce répertoire, les sous-répertoires et les fichiers)
 - Créateur Propriétaire : contrôle total (sous-répertoires et fichiers)
 - System : contrôle total (ce répertoire, les sous-répertoires et les fichiers)
 - Tout le monde : lecture et exécution (ce répertoire)
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